After your death in hospital, you have been wrongly sent down to Hell from the gates of Heaven where you find Lucifer himself has his own problems. He has discovered that Adolf Hitler is attempting to raise an army including Mussolini and Reverend Jim, to overthrow Lucifer and take over Hell. He has tasked you to stop Hitler in his power struggle and as a reward you can return back up to Heaven.

Lucifer's Realm is a graphic text adventure where you see pictures for each location while text below describes what you can see in the location. You type commands with the keyboard to control your hero and interact with various locations.